1999 年 26 巻 1 号 p. 40-47
We make a brief review on recent development in statistical mechanical approach for quantitative description of the vicinal surface viewed as an assembly of fluctuating steps. As for the equilibrium properties, numerical renormalization group method is succesfully applied to the vicinal surface problems. As for the non-equilibrium properties, the harmonically-interacting-step picture of the coarse-grained vicinal surface is utilized to formulate "quantitative" Ginzburg-Landau-Langevin approach.